+// SPDX-License-Identifier: GPL-2.0
/*
* Allwinner SUNXI "glue layer"
*
* Copyright (C) 2005-2006 by Texas Instruments
*
* This file is part of the Inventra Controller Driver for Linux.
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
- *
*/
#include <common.h>
+#include <dm.h>
+#include <generic-phy.h>
+#include <phy-sun4i-usb.h>
#include <asm/arch/cpu.h>
#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
-#include <asm/arch/usb_phy.h>
#include <asm-generic/gpio.h>
+#include <dm/lists.h>
+#include <dm/root.h>
+#include <linux/usb/musb.h>
#include "linux-compat.h"
#include "musb_core.h"
-#ifdef CONFIG_AXP152_POWER
-#include <axp152.h>
-#endif
-#ifdef CONFIG_AXP209_POWER
-#include <axp209.h>
-#endif
-#ifdef CONFIG_AXP221_POWER
-#include <axp221.h>
-#endif
+#include "musb_uboot.h"
/******************************************************************************
******************************************************************************
* From usbc/usbc.c
******************************************************************************/
+struct sunxi_musb_config {
+ struct musb_hdrc_config *config;
+ u8 rst_bit;
+ u8 clkgate_bit;
+};
+
+struct sunxi_glue {
+ struct musb_host_data mdata;
+ struct sunxi_ccm_reg *ccm;
+ struct sunxi_musb_config *cfg;
+ struct device dev;
+ struct phy *phy;
+};
+#define to_sunxi_glue(d) container_of(d, struct sunxi_glue, dev)
+
static u32 USBC_WakeUp_ClearChangeDetect(u32 reg_val)
{
u32 temp = reg_val;
- temp &= ~(1 << USBC_BP_ISCR_VBUS_CHANGE_DETECT);
- temp &= ~(1 << USBC_BP_ISCR_ID_CHANGE_DETECT);
- temp &= ~(1 << USBC_BP_ISCR_DPDM_CHANGE_DETECT);
+ temp &= ~BIT(USBC_BP_ISCR_VBUS_CHANGE_DETECT);
+ temp &= ~BIT(USBC_BP_ISCR_ID_CHANGE_DETECT);
+ temp &= ~BIT(USBC_BP_ISCR_DPDM_CHANGE_DETECT);
return temp;
}
u32 reg_val;
reg_val = musb_readl(base, USBC_REG_o_ISCR);
- reg_val |= (1 << USBC_BP_ISCR_ID_PULLUP_EN);
+ reg_val |= BIT(USBC_BP_ISCR_ID_PULLUP_EN);
reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
musb_writel(base, USBC_REG_o_ISCR, reg_val);
}
u32 reg_val;
reg_val = musb_readl(base, USBC_REG_o_ISCR);
- reg_val |= (1 << USBC_BP_ISCR_DPDM_PULLUP_EN);
+ reg_val |= BIT(USBC_BP_ISCR_DPDM_PULLUP_EN);
reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
musb_writel(base, USBC_REG_o_ISCR, reg_val);
}
/* config usb fifo, 8kb mode */
reg_value = readl(SUNXI_SRAMC_BASE + 0x04);
reg_value &= ~(0x03 << 0);
- reg_value |= (1 << 0);
+ reg_value |= BIT(0);
writel(reg_value, SUNXI_SRAMC_BASE + 0x04);
}
+/******************************************************************************
+ * Needed for the DFU polling magic
+ ******************************************************************************/
+
+static u8 last_int_usb;
+
+bool dfu_usb_get_reset(void)
+{
+ return !!(last_int_usb & MUSB_INTR_RESET);
+}
+
/******************************************************************************
* MUSB Glue code
******************************************************************************/
/* read and flush interrupts */
musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
+ last_int_usb = musb->int_usb;
if (musb->int_usb)
musb_writeb(musb->mregs, MUSB_INTRUSB, musb->int_usb);
musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
static int sunxi_musb_enable(struct musb *musb)
{
+ struct sunxi_glue *glue = to_sunxi_glue(musb->controller);
+ int ret;
+
pr_debug("%s():\n", __func__);
+ musb_ep_select(musb->mregs, 0);
+ musb_writeb(musb->mregs, MUSB_FADDR, 0);
+
if (enabled)
return 0;
/* select PIO mode */
musb_writeb(musb->mregs, USBC_REG_o_VEND0, 0);
- if (is_host_enabled(musb))
- sunxi_usb_phy_power_on(0); /* port power on */
+ if (is_host_enabled(musb)) {
+ ret = sun4i_usb_phy_vbus_detect(glue->phy);
+ if (ret == 1) {
+ printf("A charger is plugged into the OTG: ");
+ return -ENODEV;
+ }
+
+ ret = sun4i_usb_phy_id_detect(glue->phy);
+ if (ret == 1) {
+ printf("No host cable detected: ");
+ return -ENODEV;
+ }
+
+ ret = generic_phy_power_on(glue->phy);
+ if (ret) {
+ pr_err("failed to power on USB PHY\n");
+ return ret;
+ }
+ }
USBC_ForceVbusValidToHigh(musb->mregs);
static void sunxi_musb_disable(struct musb *musb)
{
+ struct sunxi_glue *glue = to_sunxi_glue(musb->controller);
+ int ret;
+
pr_debug("%s():\n", __func__);
if (!enabled)
return;
- if (is_host_enabled(musb))
- sunxi_usb_phy_power_off(0); /* port power off */
+ if (is_host_enabled(musb)) {
+ ret = generic_phy_power_off(glue->phy);
+ if (ret) {
+ pr_err("failed to power off USB PHY\n");
+ return;
+ }
+ }
USBC_ForceVbusValidToLow(musb->mregs);
mdelay(200); /* Wait for the current session to timeout */
static int sunxi_musb_init(struct musb *musb)
{
- struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
- int err;
+ struct sunxi_glue *glue = to_sunxi_glue(musb->controller);
+ int ret;
pr_debug("%s():\n", __func__);
- if (is_host_enabled(musb)) {
- err = sunxi_usb_phy_vbus_detect(0);
- if (err) {
- eprintf("Error: A charger is plugged into the OTG\n");
- return -EIO;
- }
+ ret = generic_phy_init(glue->phy);
+ if (ret) {
+ pr_err("failed to init USB PHY\n");
+ return ret;
}
musb->isr = sunxi_musb_interrupt;
- setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);
+ setbits_le32(&glue->ccm->ahb_gate0, BIT(AHB_GATE_OFFSET_USB0));
+ if (glue->cfg->clkgate_bit)
+ setbits_le32(&glue->ccm->ahb_gate0,
+ BIT(glue->cfg->clkgate_bit));
#ifdef CONFIG_SUNXI_GEN_SUN6I
- setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);
+ setbits_le32(&glue->ccm->ahb_reset0_cfg, BIT(AHB_GATE_OFFSET_USB0));
+ if (glue->cfg->rst_bit)
+ setbits_le32(&glue->ccm->ahb_reset0_cfg,
+ BIT(glue->cfg->rst_bit));
#endif
- sunxi_usb_phy_init(0);
USBC_ConfigFIFO_Base();
USBC_EnableDpDmPullUp(musb->mregs);
return 0;
}
-const struct musb_platform_ops sunxi_musb_ops = {
+static void sunxi_musb_pre_root_reset_end(struct musb *musb)
+{
+ struct sunxi_glue *glue = to_sunxi_glue(musb->controller);
+
+ sun4i_usb_phy_set_squelch_detect(glue->phy, false);
+}
+
+static void sunxi_musb_post_root_reset_end(struct musb *musb)
+{
+ struct sunxi_glue *glue = to_sunxi_glue(musb->controller);
+
+ sun4i_usb_phy_set_squelch_detect(glue->phy, true);
+}
+
+static const struct musb_platform_ops sunxi_musb_ops = {
.init = sunxi_musb_init,
.enable = sunxi_musb_enable,
.disable = sunxi_musb_disable,
+ .pre_root_reset_end = sunxi_musb_pre_root_reset_end,
+ .post_root_reset_end = sunxi_musb_post_root_reset_end,
+};
+
+/* Allwinner OTG supports up to 5 endpoints */
+#define SUNXI_MUSB_MAX_EP_NUM 6
+#define SUNXI_MUSB_RAM_BITS 11
+
+static struct musb_fifo_cfg sunxi_musb_mode_cfg[] = {
+ MUSB_EP_FIFO_SINGLE(1, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(1, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(2, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(2, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(3, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(3, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(4, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(4, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(5, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(5, FIFO_RX, 512),
+};
+
+/* H3/V3s OTG supports only 4 endpoints */
+#define SUNXI_MUSB_MAX_EP_NUM_H3 5
+
+static struct musb_fifo_cfg sunxi_musb_mode_cfg_h3[] = {
+ MUSB_EP_FIFO_SINGLE(1, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(1, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(2, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(2, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(3, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(3, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(4, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(4, FIFO_RX, 512),
+};
+
+static struct musb_hdrc_config musb_config = {
+ .fifo_cfg = sunxi_musb_mode_cfg,
+ .fifo_cfg_size = ARRAY_SIZE(sunxi_musb_mode_cfg),
+ .multipoint = true,
+ .dyn_fifo = true,
+ .num_eps = SUNXI_MUSB_MAX_EP_NUM,
+ .ram_bits = SUNXI_MUSB_RAM_BITS,
+};
+
+static struct musb_hdrc_config musb_config_h3 = {
+ .fifo_cfg = sunxi_musb_mode_cfg_h3,
+ .fifo_cfg_size = ARRAY_SIZE(sunxi_musb_mode_cfg_h3),
+ .multipoint = true,
+ .dyn_fifo = true,
+ .soft_con = true,
+ .num_eps = SUNXI_MUSB_MAX_EP_NUM_H3,
+ .ram_bits = SUNXI_MUSB_RAM_BITS,
+};
+
+static int musb_usb_probe(struct udevice *dev)
+{
+ struct sunxi_glue *glue = dev_get_priv(dev);
+ struct musb_host_data *host = &glue->mdata;
+ struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
+ struct musb_hdrc_platform_data pdata;
+ void *base = dev_read_addr_ptr(dev);
+ struct phy phy;
+ int ret;
+
+ if (!base)
+ return -EINVAL;
+
+ glue->cfg = (struct sunxi_musb_config *)dev_get_driver_data(dev);
+ if (!glue->cfg)
+ return -EINVAL;
+
+ glue->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ if (IS_ERR(glue->ccm))
+ return PTR_ERR(glue->ccm);
+
+ ret = generic_phy_get_by_name(dev, "usb", &phy);
+ if (ret) {
+ pr_err("failed to get usb PHY\n");
+ return ret;
+ }
+
+ glue->phy = &phy;
+ priv->desc_before_addr = true;
+
+ memset(&pdata, 0, sizeof(pdata));
+ pdata.power = 250;
+ pdata.platform_ops = &sunxi_musb_ops;
+ pdata.config = glue->cfg->config;
+
+#ifdef CONFIG_USB_MUSB_HOST
+ pdata.mode = MUSB_HOST;
+ host->host = musb_init_controller(&pdata, &glue->dev, base);
+ if (!host->host)
+ return -EIO;
+
+ ret = musb_lowlevel_init(host);
+ if (!ret)
+ printf("Allwinner mUSB OTG (Host)\n");
+#else
+ pdata.mode = MUSB_PERIPHERAL;
+ ret = musb_register(&pdata, &glue->dev, base);
+ if (!ret)
+ printf("Allwinner mUSB OTG (Peripheral)\n");
+#endif
+
+ return ret;
+}
+
+static int musb_usb_remove(struct udevice *dev)
+{
+ struct sunxi_glue *glue = dev_get_priv(dev);
+ struct musb_host_data *host = &glue->mdata;
+ int ret;
+
+ if (generic_phy_valid(glue->phy)) {
+ ret = generic_phy_exit(glue->phy);
+ if (ret) {
+ pr_err("failed to exit %s USB PHY\n", dev->name);
+ return ret;
+ }
+ }
+
+ musb_stop(host->host);
+
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+ clrbits_le32(&glue->ccm->ahb_reset0_cfg, BIT(AHB_GATE_OFFSET_USB0));
+ if (glue->cfg->rst_bit)
+ clrbits_le32(&glue->ccm->ahb_reset0_cfg,
+ BIT(glue->cfg->rst_bit));
+#endif
+ clrbits_le32(&glue->ccm->ahb_gate0, BIT(AHB_GATE_OFFSET_USB0));
+ if (glue->cfg->clkgate_bit)
+ clrbits_le32(&glue->ccm->ahb_gate0,
+ BIT(glue->cfg->clkgate_bit));
+
+ free(host->host);
+ host->host = NULL;
+
+ return 0;
+}
+
+static const struct sunxi_musb_config sun4i_a10_cfg = {
+ .config = &musb_config,
+};
+
+static const struct sunxi_musb_config sun8i_h3_cfg = {
+ .config = &musb_config_h3,
+ .rst_bit = 23,
+ .clkgate_bit = 23,
+};
+
+static const struct udevice_id sunxi_musb_ids[] = {
+ { .compatible = "allwinner,sun4i-a10-musb",
+ .data = (ulong)&sun4i_a10_cfg },
+ { .compatible = "allwinner,sun6i-a31-musb",
+ .data = (ulong)&sun4i_a10_cfg },
+ { .compatible = "allwinner,sun8i-a33-musb",
+ .data = (ulong)&sun4i_a10_cfg },
+ { .compatible = "allwinner,sun8i-h3-musb",
+ .data = (ulong)&sun8i_h3_cfg },
+ { }
+};
+
+U_BOOT_DRIVER(usb_musb) = {
+ .name = "sunxi-musb",
+#ifdef CONFIG_USB_MUSB_HOST
+ .id = UCLASS_USB,
+#else
+ .id = UCLASS_USB_DEV_GENERIC,
+#endif
+ .of_match = sunxi_musb_ids,
+ .probe = musb_usb_probe,
+ .remove = musb_usb_remove,
+#ifdef CONFIG_USB_MUSB_HOST
+ .ops = &musb_usb_ops,
+#endif
+ .platdata_auto_alloc_size = sizeof(struct usb_platdata),
+ .priv_auto_alloc_size = sizeof(struct sunxi_glue),
};
projects / u-boot / blobdiff